John I lost contact with him after I joined Ta-Tas
in Brizzey, and after I left Oz in late 89. Not sure but
rumored to be with Kendells.

Buzzy thats true but you DO have to know min gradients
in order to ensure your meetin the predicted vert path to
avoid hittin the hills -

Min Gross gradients -
1st - 2 eng pos climb, 3 eng 0.3%, 4 eng 0.5%
2nd - 2.4%, 2.7%, 3.0%
3rd - 1.2%, 1.5%, 1.7% (capabilitey)
4th - 1.2%, 1.5%, 1.7%

Gross gradient decraments to get min Net gradient -
(all segments) -0.8%, -0.9%, -1.0%
Net gradient must clear all obst by 35'.

Useful stuff -
* gradient% = ROC fpm/TAS kts
* 15 deg AOB degrades ROC by average 100fpm
* Change of dir greater than 15 deg - precalculated net
vert clearance is increased to 50'